Argonne National Laboratory

Experimental Physics and
Industrial Control System

1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  <20112012  2013  2014  2015  2016  2017  2018  2019  Index 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  <20112012  2013  2014  2015  2016  2017  2018  2019 
<== Date ==> <== Thread ==>

Subject: RE: Filtering Archive data
From: <james.rowland@diamond.ac.uk>
To: <ddudley@bnl.gov>, <tech-talk@aps.anl.gov>
Date: Tue, 10 May 2011 07:46:51 +0000
Title: Filtering Archive data

Hi David

 

We use python XMLRPC and numpy for this, the python XML parse is the performance bottleneck so we have added base64 encoded arrays to the archive cgi server. I can send you some examples. This is for the rtree archiver with index and data files?

 

James

 

From: tech-talk-bounces@aps.anl.gov [mailto:tech-talk-bounces@aps.anl.gov] On Behalf Of David Dudley
Sent: 10 May 2011 00:15
To: EPICS Tech Talk
Subject: Filtering Archive data

 

I’ve got a few datasets from some magnet testing we did last week.  These data sets show  quite a bit of impulse and high frequency noise on them.

Has anyone ever written software for the ChannelArchiver that can extract datasets and do filtering on it?  In particular, it looks like I need to apply a low-pass filter to the data sets to filter out the noise.

David

--
"... The Crossbow Project. There's No Defense Like a Good Offense. " - Real Genius (1985)

Don't think it exists?  Google the Air Force X-37B project.


 

-- 

This e-mail and any attachments may contain confidential, copyright and or privileged material, and are for the use of the intended addressee only. If you are not the intended addressee or an authorised recipient of the addressee please notify us of receipt by returning the e-mail and do not use, copy, retain, distribute or disclose the information in or attached to the e-mail.
Any opinions expressed within this e-mail are those of the individual and not necessarily of Diamond Light Source Ltd.
Diamond Light Source Ltd. cannot guarantee that this e-mail or any attachments are free from viruses and we cannot accept liability for any damage which you may sustain as a result of software viruses which may be transmitted in or with the message.
Diamond Light Source Limited (company no. 4375679). Registered in England and Wales with its registered office at Diamond House, Harwell Science and Innovation Campus, Didcot, Oxfordshire, OX11 0DE, United Kingdom
 



References:
Filtering Archive data David Dudley

Navigate by Date:
Prev: Re: Does EPICS Base support multi-thread on vxWorks 6.3? lorna . zhang
Next: What is the difference between VxWorks intConnect and pciIntConnect 王林
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  <20112012  2013  2014  2015  2016  2017  2018  2019 
Navigate by Thread:
Prev: Filtering Archive data David Dudley
Next: RE: Filtering Archive data james.rowland
Index: 1994  1995  1996  1997  1998  1999  2000  2001  2002  2003  2004  2005  2006  2007  2008  2009  2010  <20112012  2013  2014  2015  2016  2017  2018  2019 
ANJ, 18 Nov 2013 Valid HTML 4.01! · Home · News · About · Base · Modules · Extensions · Distributions · Download ·
· Search · EPICS V4 · IRMIS · Talk · Bugs · Documents · Links · Licensing ·